CN111151985A - Method for treating and preventing flicking knife - Google Patents
Method for treating and preventing flicking knife Download PDFInfo
- Publication number
- CN111151985A CN111151985A CN202010013674.0A CN202010013674A CN111151985A CN 111151985 A CN111151985 A CN 111151985A CN 202010013674 A CN202010013674 A CN 202010013674A CN 111151985 A CN111151985 A CN 111151985A
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- Prior art keywords
- cutter
- preventing
- knife
- handling
- allowance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention provides a method for treating and preventing a cutter bouncing device, which comprises the following steps: firstly, determining the position of the mould where the elastic cutter is easy to appear, and processing the position of the mould where the elastic cutter is easy to appear. The method for treating and preventing the elastic cutter is suitable for numerical control machine tool machining of the injection mold, and avoids the repeated occurrence of the elastic cutter on surfaces with similar shapes.
Description
Technical Field
The invention belongs to the field of machining, and particularly relates to a method for treating and preventing a cutter bouncing tool.
Background
Along with the improvement of the requirements of various fields on the processing precision of parts, the requirements on a die for processing the parts are also continuously improved, and the dimensional precision of the die directly influences the product quality. The processing efficiency, precision and qualification rate of the die all affect the production cost, and the die is used in different industries, products and equipment, so that the die has various requirements on the processing precision.
In the prior art, the elastic cutter is caused by reasons of overlarge allowance, uneven allowance, too long cutter extension length exceeding 5 times of diameter, unreasonable machining parameters, F, S, unmatched cutting depth, serious abrasion in the cutter machining process, untimely replacement, insufficient air blowing in machining, untimely iron slag discharge, unreasonable programming feed mode and the like.
Disclosure of Invention
In view of the above, the present invention is directed to a method for handling and preventing a flick knife, which prevents the flick knife from appearing.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method for treating and preventing a knife spring comprises the following steps: firstly, determining the position of the mould where the elastic cutter is easy to appear, and processing the position of the mould where the elastic cutter is easy to appear.
Further, the positions where the flick knife easily appears comprise the following positions:
(5) the inner side of the boss shape;
(6) between the bosses;
(7) the side surface of the V-shaped groove;
(8) deep cavity workpiece root corners.
Furthermore, the position where the flick knife is easy to appear is the inner side of the shape of the boss, and the flick knife is protected by an auxiliary surface after being thickened.
Further, the position of bullet sword appears easily for between boss and the boss, if can carry out CNC processing, use the path ball sword earlier and open, make the surplus even, if can't carry out CNC processing, do the protection face between boss and the boss, then carry out EDM processing.
Furthermore, the position where the cutter flicking easily occurs is the side surface of the V-shaped groove, auxiliary surface protection is firstly carried out, then EDM processing is carried out, and the cutter path of the side surface of the V-shaped groove is deleted after a cutter track is generated.
Furthermore, the position where the elastic cutter is easy to appear is the corner of the root part of the deep-cavity workpiece, and 3+2 shafts are used for processing. The 3+2 axis machining method is to fix the cutting tool at an inclined position by two rotating axes and then to machine the cutting tool by the feed axis X, Y, Z.
Furthermore, R between the bosses after CNC machining is 0.3-0.8mm, the R1 ball cutter is used before middle light chamfering until the allowance is 0.1-0.5mm, and then the middle light chamfering is performed until the allowance is 0.05-0.3 mm.
Further, the R between the lug boss and the lug boss after CNC machining is 0.5mm, the R1 ball cutter is used for centering to the allowance of 0.3mm before the middle light clearance angle, and then the middle light clearance angle is 0.1mm to the allowance.
Further, in the EDM processing, the R1 ball cutter is used before the medium-light angle cleaning until the allowance is 0.1-0.5mm, and then the medium-light angle cleaning until the allowance is 0.05-0.3mm, so that the cutter path trimming range is kept consistent.
Further, in the EDM processing, the R1 ball cutter is used before the middle chamfering, the thickness of the middle chamfering is 0.3mm, and the middle chamfering is used again until the margin is 0.1mm, so that the cutter path trimming range is kept consistent.
Compared with the prior art, the method for treating and preventing the elastic knife has the following advantages:
the method for treating and preventing the elastic cutter is suitable for numerical control machine tool machining of the injection mold, and avoids the repeated occurrence of the elastic cutter on surfaces with similar shapes.
Drawings
FIG. 1 is a view showing the position of a cutter flick which is likely to occur in example 1 of the present invention;
FIG. 2 is a diagram showing the positions of the elastic knives which are easy to occur in embodiment 2 of the present invention;
FIG. 3 is a position diagram of a cutter flick easily occurring in embodiment 3 of the present invention;
FIG. 4 is a position diagram of the cutter ejection easily occurring in embodiment 4 of the present invention;
FIG. 5 is a view showing the position of an auxiliary surface on the inner side of a boss in example 1 of the present invention;
FIG. 6 is a view showing the position of the ball cutter for roughing in example 2 of the present invention;
fig. 7 is a position diagram of an auxiliary surface of a side surface of a V-groove in embodiment 3 of the present invention.
Description of reference numerals:
1-inside of boss shape; 2-between the bosses; 3-V type groove side; 4-deep cavity workpiece root corner; 5-auxiliary surface; 6-open coarse position.
Detailed Description
Unless defined otherwise, technical terms used in the following examples have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The present invention will be described in detail with reference to the following examples and accompanying drawings.
Example 1
A method for treating and preventing a knife spring comprises the following steps: the position where the flick knife easily appears is the inner side of a boss shape, and the flick knife is protected by an auxiliary surface after being thickened, so that a knife track is not generated in a narrow area.
Example 2
A method for treating and preventing a knife spring comprises the following steps: the position where the cutter flicking easily occurs is between the bosses, R between the bosses is 0.5mm, the thickness of the cutter middle is 0.3mm when an R1 ball cutter is used before the middle light corner cleaning, and the height of the cutter middle is 0.1mm when the cutter middle is used before the middle light corner cleaning.
Example 3
A method for treating and preventing a knife spring comprises the following steps: the position where the cutter flicking easily occurs is the side surface of the V-shaped groove, auxiliary surface protection is firstly carried out, then EDM machining is carried out, the middle thickness of an R1 ball cutter is used before the middle light clearance angle is changed to the allowance of 0.3mm, then the middle light clearance angle is changed to the allowance of 0.1mm, the cutter path trimming range is kept consistent, and the cutter path on the side surface of the V-shaped groove is deleted after the cutter path is generated.
Example 4
A method for treating and preventing a knife spring comprises the following steps: the position where the elastic cutter easily appears is the corner of the root part of the deep-cavity workpiece, and 3+2 shafts are used for processing.
The parameters of the tools of examples 1-4 are shown in Table 1.
TABLE 1 tool machining Range
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A method for treating and preventing a knife spring is characterized by comprising the following steps: the method comprises the following steps: firstly, determining the position of the mould where the elastic cutter is easy to appear, and processing the position of the mould where the elastic cutter is easy to appear.
2. The method for handling and preventing a saber knife according to claim 1, comprising: the positions where the flick knife easily appears comprise the following positions:
(1) the inner side of the boss shape;
(2) between the bosses;
(3) the side surface of the V-shaped groove;
(4) deep cavity workpiece root corners.
3. The method for handling and preventing a saber knife according to claim 2, comprising: the position where the flick knife easily appears is the inner side of the shape of the boss, and the flick knife is protected by an auxiliary surface after being thickened.
4. The method for handling and preventing a saber knife according to claim 2, comprising: the position of bullet sword appears easily for between boss and the boss, if can carry out CNC processing, use the path ball sword earlier and open, make the surplus even, if can't carry out CNC processing, do the protection face between boss and the boss, then carry out EDM processing.
5. The method for handling and preventing a saber knife according to claim 2, comprising: the position where the cutter is easy to bounce is the side surface of the V-shaped groove, auxiliary surface protection is firstly carried out, then EDM processing is carried out, and cutter paths on the side surface of the V-shaped groove are deleted after a cutter track is generated.
6. The method for handling and preventing a saber knife according to claim 2, comprising: the position where the elastic cutter easily appears is the corner of the root part of the deep-cavity workpiece, and 3+2 shafts are used for processing.
7. The method for handling and preventing the flick knife according to claim 4, wherein: the R between the bosses after CNC machining is 0.3-0.8mm, the R1 ball cutter is used for cutting the blank to the allowance of 0.1-0.5mm before the middle light corner cleaning, and the middle light corner cleaning is carried out to the allowance of 0.05-0.3 mm.
8. The method for handling and preventing a saber as defined in claim 7 further comprising: after CNC machining, the distance R between the bosses is 0.5mm, the distance R between the bosses before middle chamfering is 0.3mm when an R1 ball cutter is used, and the distance R between the bosses after middle chamfering is 0.1mm when the middle chamfering is used.
9. The method for handling and preventing a saber knife according to claim 5, wherein: in the EDM processing, the R1 ball cutter is used before the middle chamfering until the allowance is 0.1-0.5mm, and then the middle chamfering is used until the allowance is 0.05-0.3mm, so that the cutter path trimming range is kept consistent.
10. The method of claim 9, wherein the method comprises: in the EDM processing, the R1 ball cutter is used before the middle light clearance angle until the allowance is 0.3mm, and then the middle light clearance angle is used until the allowance is 0.1mm, so that the cutter path trimming range is kept consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013674.0A CN111151985A (en) | 2020-01-07 | 2020-01-07 | Method for treating and preventing flicking knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013674.0A CN111151985A (en) | 2020-01-07 | 2020-01-07 | Method for treating and preventing flicking knife |
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| CN111151985A true CN111151985A (en) | 2020-05-15 |
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| CN202010013674.0A Pending CN111151985A (en) | 2020-01-07 | 2020-01-07 | Method for treating and preventing flicking knife |
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Citations (7)
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|---|---|---|---|---|
| CN101190471A (en) * | 2006-11-23 | 2008-06-04 | 汉达精密电子(昆山)有限公司 | Mesh processing device and method |
| CN103198186A (en) * | 2013-03-29 | 2013-07-10 | 南京航空航天大学 | Aircraft structural part cutting parameter optimization method based on characteristics |
| CN104462639A (en) * | 2014-10-16 | 2015-03-25 | 江苏文光模具技术有限公司 | Fine carving machining method for patterns on bottom surface of mould cavity |
| CN108971912A (en) * | 2018-07-26 | 2018-12-11 | 骏伟塑胶制品（太仓）有限公司 | A kind of production technology of the non-circular mold cores of slender type |
| CN208341759U (en) * | 2018-05-21 | 2019-01-08 | 成都爱乐达航空制造股份有限公司 | A kind of depth lumen pore process tool |
| CN110238606A (en) * | 2019-06-18 | 2019-09-17 | 成都飞机工业（集团）有限责任公司 | A kind of processing method of the open vallecular cavity of web part |
| CN110480284A (en) * | 2019-09-17 | 2019-11-22 | 成都飞机工业（集团）有限责任公司 | A kind of web notch arrangement processing method |
-
2020
- 2020-01-07 CN CN202010013674.0A patent/CN111151985A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| CN101190471A (en) * | 2006-11-23 | 2008-06-04 | 汉达精密电子(昆山)有限公司 | Mesh processing device and method |
| CN103198186A (en) * | 2013-03-29 | 2013-07-10 | 南京航空航天大学 | Aircraft structural part cutting parameter optimization method based on characteristics |
| CN104462639A (en) * | 2014-10-16 | 2015-03-25 | 江苏文光模具技术有限公司 | Fine carving machining method for patterns on bottom surface of mould cavity |
| CN208341759U (en) * | 2018-05-21 | 2019-01-08 | 成都爱乐达航空制造股份有限公司 | A kind of depth lumen pore process tool |
| CN108971912A (en) * | 2018-07-26 | 2018-12-11 | 骏伟塑胶制品（太仓）有限公司 | A kind of production technology of the non-circular mold cores of slender type |
| CN110238606A (en) * | 2019-06-18 | 2019-09-17 | 成都飞机工业（集团）有限责任公司 | A kind of processing method of the open vallecular cavity of web part |
| CN110480284A (en) * | 2019-09-17 | 2019-11-22 | 成都飞机工业（集团）有限责任公司 | A kind of web notch arrangement processing method |
Non-Patent Citations (1)
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| UG编程CNC小北: "CNC加工过程中常见弹刀处理措施", 《百家号》 * |
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Application publication date: 20200515 |
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